James Mason Crafts was an American chemist, mostly known for developing the Friedel–Crafts alkylation and acylation reactions with Charles Friedel in 1876. A research chemist for most of his career, Crafts also served as president of the Massachusetts Institute of Technology from 1898 to 1900.
- Occupation
- chemist, university teacher
- Citizenship
- United States
- Born
- March 8, 1839
- Died
- June 20, 1917
